import { rmSync } from 'node:fs'
import { resolve } from 'node:path'

import vue from '@vitejs/plugin-vue'
import vueJsx from '@vitejs/plugin-vue-jsx'
import { defineConfig } from 'vite'
import electron from 'vite-plugin-electron/simple'

import pkg from './package.json'

export default defineConfig(({ command, mode }) => {
  rmSync('dist-electron', { recursive: true, force: true })

  const isServe = command === 'serve'
  const isBuild = command === 'build'
  const sourcemap = isServe || !!process.env.VSCODE_DEBUG

  return {
    resolve: {
      alias: [
        {
          find: '@/',
          replacement: `${resolve(__dirname, 'src')}/`
        },
        ...(mode === 'production'
          ? [
              {
                find: 'vue-types',
                replacement: 'vue-types/shim'
              }
            ]
          : [])
      ]
    },
    plugins: [
      vue(),
      vueJsx(),
      electron({
        main: {
          // Shortcut of `build.lib.entry`
          entry: 'electron/main/index.ts',
          onstart({ startup }) {
            if (process.env.VSCODE_DEBUG) {
              console.log(
                /* For `.vscode/.debug.script.mjs` */ '[startup] Electron App'
              )
            } else {
              startup()
            }
          },
          vite: {
            build: {
              sourcemap,
              minify: isBuild,
              outDir: 'dist-electron/main',
              rollupOptions: {
                // Some third-party Node.js libraries may not be built correctly by Vite, especially `C/C++` addons,
                // we can use `external` to exclude them to ensure they work correctly.
                // Others need to put them in `dependencies` to ensure they are collected into `app.asar` after the app is built.
                // Of course, this is not absolute, just this way is relatively simple. :)
                external: Object.keys(
                  'dependencies' in pkg ? pkg.dependencies : {}
                )
              }
            }
          }
        },
        preload: {
          // Shortcut of `build.rollupOptions.input`.
          // Preload scripts may contain Web assets, so use the `build.rollupOptions.input` instead `build.lib.entry`.
          input: 'electron/preload/index.ts',
          vite: {
            build: {
              sourcemap: sourcemap ? 'inline' : undefined, // #332
              minify: isBuild,
              outDir: 'dist-electron/preload',
              rollupOptions: {
                external: Object.keys(
                  'dependencies' in pkg ? pkg.dependencies : {}
                )
              }
            }
          }
        },
        // Ployfill the Electron and Node.js API for Renderer process.
        // If you want use Node.js in Renderer process, the `nodeIntegration` needs to be enabled in the Main process.
        // See 👉 https://github.com/electron-vite/vite-plugin-electron-renderer
        renderer: {}
      })
    ],
    server:
      process.env.VSCODE_DEBUG &&
      (() => {
        const url = new URL(pkg.debug.env.VITE_DEV_SERVER_URL)
        return {
          host: url.hostname,
          port: +url.port
        }
      })(),
    clearScreen: false
  }
})
